Substrate for carrying catalytic particles
US7897529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2008 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Oct 27, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/699
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is provided a substrate (1) capable of carrying uniformly dispersed, finely divided, particulate, solid particles, e.g., catalyst particles (10) and sustaining temperatures in excess of 1200 degrees F. The substrate comprises a top layer (2) for containing the particles (10) and composed of quartz fibers (4) with an average diameter of between about 0.1 and 4 microns and about 0 to 13% of microglass fibers having a softening point of about 1000 degrees F. A support layer (3) is composed of the fibers of the top layer and, in addition, bulk refractory, e.g., ceramic, fibers (6) having and average diameter of about 1 to 4 microns and 0 to 50% of chopped e-glass fiber (7). A method for producing the substrate is provided that includes wet laying the top and bottom layers in spaced apart times so that the juncture (8) between the two layers has intermingled fibers whereby the consolidated layers are not easily separated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.